Quote:
Originally Posted by maddz
Now that's interesting, a azw8 novel imports from K4Mac as a KFX file if you use import as archive, but a graphic novel doesn't. If you import as All files it imports as an archive...
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There is definitely some confusion here. KFX format uses a set of files for each book instead of a single file as most other formats do. When a azw8 file is imported into calibre the KFX Input plugin locates the rest of the files that make up the book and places them into a ZIP archive with the extension ".kfx-zip". That is then passed to the DRM removal plugin for processing.
If DRM removal is successful the KFX Input plugin then combines all of the components of the book into a single KFX file and changes the extension to ".kfx". If the DRM removal fails then that will not happen. So seeing KFX in calibre after import indicates success and seeing KFX-ZIP indicates failure.
Quote:
Originally Posted by maddz
I'm wondering if it's a publication date issue - anything published since Jan 2023 is importing as zip? The books I successfully imported were published prior to that date...
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I doubt that the publication data is a factor in this case. It is more likely a question of whether a particular book has DRM that is locked to a specific Kindle app/device or not. Books obtained from the new Kindle for Mac app that are not locked in that way should be able to have their DRM removed.